<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .k1{
            width: 100%;
            height: 43px;
            background-color: #222222;
        }
        ul.kb1{
            width: 1080px;
            height: 43px;
            display: flex;
            margin-left: 12%;
            /* border: 1px solid chartreuse; */
        }ul.kb1 li{
            width: 160px;
            height: 43px;
            list-style: none;
            text-align: center;
            margin-left: 15px;
            /* border: 1px solid green; */
        }
        p{
            width: 150px;
            height: 43px;
            margin: -44px 75%;
            color: #9d9d9d;
            font-size: 15px;
            text-align: center;
            line-height: 40px;
            /* border: 1px solid rgb(247, 0, 0); */
        }
        .div>li>a{
            display: block;
        }
        .k1 a{
            font-size: 15px;
            line-height: 40px;
            text-decoration:none;
            color: #9d9d9d;
        }
        .k1 a:hover{
            color: #fff;
        }
        .k1 span{
            line-height: 45px;
            color: #9d9d9d;
            font-size: 18px;
        }
        .k1 span:hover{
            color: #fff;
        }
        .k1 p:hover{
            color: #fff;
        }
        @media all and (max-width: 1220px){
            .k1{
                width: 1100px;
            }
        }
        @media all and (max-width: 1100px){
            .k1>ul>li>a{
                width: 780px;
            }
        }
        @media all and (max-width: 780px){
            .k1>ul>li>a>span{
                width: 500px;
            }
        }
        .kb2{
            background: linear-gradient(45deg,#020031,#6d3353);
        }
        .k2{
            width: 100%;
            height: 500px;
            position: relative;
            background-image: url(l.png);
        }
        .k3{
            width: 950px;
            height: 310px;
            /* border: 1px solid green; */
            text-align: center;
            padding-top: 75px;
            margin-left: 24%;
        }
        .k3 h1{
            width: 950px;
            height: 120px;
            /* border: 1px solid chartreuse; */
            font-size: 85px;
            color: #fff;
        }
        .k3 li{
            width: 950px;
            height: 60px;
            /* border: 1px solid violet; */
            margin-left: 5%;
            font-size: 30px;
            color: #fff;
            list-style: none;
        }
        .k3 span:hover{
            background-color: #286090;
        }
        .k3 span{
            margin-left: 35%;
            line-height: 69px;
            display: block;
            width: 350px;
            height: 70px;
            /* border: 1px solid rgb(206, 30, 206); */
            background-color: #337AB7;
            font-size: 25px;
            color: #fff;
            border: 0;
            box-shadow: inset 0 -4px 0 #23527c;
            border-top-left-radius: 10px;
            border-bottom-left-radius: 10px;
            border-top-right-radius: 10px;
            border-bottom-right-radius: 10px;
        }
        .k3 a{
            width: 950px;
            height: 70px;
            margin-left: 2%;
            /* border: 1px solid rgb(255, 0, 255); */
            font-size: 15px;
            color: hsla(0,0%,100%,.5);
            transition: all .2s ease-in-out;
            text-decoration:none;
        }
        .k3 a:hover{
            color: #fff;
            border-bottom: 1px solid #eaeaea;
        }
        @media all and (max-width: 1220px){
            .k3{
                width: 1100px;
            }
        }
        @media all and (max-width: 1100px){
            .k3{
                width: 900px;
            }
        }
        @media all and (max-width: 900px){
            .k3{
                width: 600px;
            }
        }
        @media all and (max-width: 600px){
            .k3{
                width: 300px;
            }
        }
        .k4{
            width: 100%;
            height: 1200px;
            /* background-color: violet; */
        }
        @media all and (max-width: 1220px){
            .k4{
                width: 1100px;
            }
        }
        @media all and (max-width: 1100px){
            .k4 {
                width: 900px;
                font-size: 30%;
            }
        }
        @media all and (max-width: 900px){
            .k4{
                width: 600px;
            }
        }
        @media all and (max-width: 900px){
            .k4{
                width: 30%;
            }
        }
        .k5{
            width: 100%;
            height: 105px;
            /* border: 1px solid black; */
            background-color: #fff;
        }
        .k5 h2{
            text-align: center;
            line-height: 160px;
            font-size: 42px;
            letter-spacing: -1px;
        }
        .kb3{
            width: 99.9%;
            height: 50px;
            /* border: 1px solid green; */
            background-color: #fff;
            margin-top: -2.9%;
            text-align: center;

        }
        .kb3 a{
            /* line-height: 65px; */
            padding-bottom: 30px;
            color: black;
            border-bottom: 1px solid #eeeeee;
        }
        .k6 {
            width: 1500px;
            height: 900px;
            margin: 5% auto;
            /* border: 1px solid black; */
        }

        .k6 ul{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .k6 ul li{
            width: 300.5px;
            height: 420px;
            list-style: none;
            text-align: center;
            padding: 9px;
            border: 1px solid rgb(179, 184, 175);
        }
        .k6 a{
            text-decoration:none;
            font-size: 25px;
            color: #337AB7;
        }
        .k6 a:hover{
            color: #23527c;
        }
        .k6 img{
            margin-bottom: 35px;
        }
        .k6 span{
            width: 100px;
            height: 100px;
            /* border: 1px solid chocolate; */
            font-size: 20px;
            color: cadetblue;
        }
        .k6 small{
            width: 100px;
            height: 100px;
            /* border: 1px solid green; */
            font-size: 15px;
        }
        @media all and (max-width: 1220px){
            .k6{
                width: 1100px;
            }
        }
        @media all and (max-width: 1100px){
            .k6{
                width: 900px;
            }
        }
        @media all and (max-width: 900px){
            .k6{
                width: 600px;
            }
        }
    </style>
</head>
<body>
    <div class="k1">
        <ul class="kb1">
            <li><a href=""><span>Bootstrap中文网</span></a></li>
            <li><a href="">Bootstrap3中文文档</a></li>
            <li><a href="">Bootstrap4中文文档</a></li>
            <li><a href="">Sass 教程</a></li>
            <li><a href="">Less 教程</a></li>
            <li><a href="">jQuery API</a></li>
            <li><a href="">网站实例</a></li>
        </ul>
        <p><a href="">关于</a></p>
    </div>
    <div class="kb2">
    <div class="k2">
        <div class="k3">
            <ul>
                <h1>Bootstrap</h1>
                <li>简洁、直观、强悍的前端开发框架，让web开发更迅速、简单。</li>
                <span>Bootstrap3中文文档(V3.3.7)</span>
                <br>
                <a href="">Bootstrap2中文文档(V2.3.2)</a>
            </ul>
        </div>
    </div>
</div>
<div class="k4">
    <div class="k5">
        <h2>Bosststrap相关优质项目推荐</h2>
        <div class="kb3">
            <a>这些项目或者是对Bootstrap进行了有益的补充，或者是基于Bootstrap开发的</a>
        </div>
    </div>
    <div class="k6">
        <ul>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li> 
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
            <li>
                <img src="hu.png">
                <a href="">Handlebars</a>
                <br>
                <span>一个书写高效率、语义化的模板引擎</span>
                <br>
                <small>Handlebars 是一个书写高效率、语义化的模板引擎，与 Mustache 模板兼容。</small>
            </li>
        </ul>
    </div>
</div>
</body>
</html>